Installing OpenFaaS on Ubuntu Server Latest

OpenFaaS is a serverless platform that provides developer-friendly tools to build, deploy, and manage serverless functions. This tutorial will walk you through the steps to install OpenFaaS on Ubuntu Server Latest.

Prerequisites

Before we begin, ensure that you have the following:

  • Ubuntu Server Latest installed
  • Docker installed
  • Docker Compose installed

Note: If you haven't installed Docker and Docker Compose, you can follow the instructions in this tutorial to install Docker and Docker Compose on Ubuntu.

1. Install faasd

OpenFaaS offers multiple serverless runtimes such as faasd, OpenFaaS, and Kubeless. For this tutorial, we will be installing faasd, a lightweight and fast serverless platform that uses containerd as its container runtime.

  1. Install faasd by running the following command:
sudo curl -sSL https://get.openfaas.com/faasd.sh | sudo sh

This command will download the faasd installer script and install faasd on your Ubuntu Server.

  1. Verify if faasd has been installed successfully by running the following command:
sudo faas-cli version

This command should output the version of faasd, and if not, make sure that your user has access to Docker as a non-root user.

2. Deploying your first function

In this step, we will be deploying a sample function to test if OpenFaaS is working correctly.

  1. Clone the OpenFaaS templates repository by running the following command:
git clone https://github.com/openfaas/templates.git
  1. Create a new directory for your function and navigate to that directory. For example:
mkdir my-function
cd my-function
  1. Initialize the function by running the following command:
faas-cli new --lang python3 my-function --prefix="<your-docker-username-or-organization>"

This command will create a new Python 3.6 function called "my-function" and uses your Docker Hub username or organization as a prefix to the image name.

  1. Build and deploy the function by running the following command:
faas-cli up -f my-function.yml

This command will build a Docker image of your function and deploy it to faasd.

  1. Test your function by running the following command:
echo "Hello World" | faas-cli invoke my-function

This command should output "Hello World!" in the terminal.

That's it! You have successfully installed OpenFaaS on Ubuntu Server Latest and deployed your first function.

Conclusion

OpenFaaS is a powerful serverless platform that offers developer-friendly tools to build, deploy, and manage serverless functions. In this tutorial, we have walked you through the steps to install faasd on Ubuntu Server Latest and deploying your first function. With OpenFaaS, you can easily develop and deploy serverless functions on your own infrastructure.